Product category:
Hazardous area interfaces, Enclosures
News Release from: Bartec UK | Subject: EC Test Type certificate IBExU 00 ATEX 1079
Edited by the Processingtalk Editorial
Team on 30 July 2004
Another first for Bartec with ATEX for
Zone 21
Bartec, known for hazardous area products and systems, has become the first supplier to be awarded the EU Type test certificate for dust tight standard enclosures in a Zone 21 environment!
Bartec, internationally known as a specialist in the design and manufacture of hazardous area products and systems, has become the first supply company in Europe to be awarded the EU Type test certificate, IBExU ATEX 1079 for the installation of industrial components, for use inside dust tight enclosures in a Zone 21 environment! Renowned for their machinery worldwide, AZO Conveyors of Germany, designed and built their product control PLCs and software according to the old regulations, placing the specified equipment into an IP 54 control box and gaining certificates of compliance for machinery to be legally used in the old Zone11, environments
This article was originally published on Processingtalk on 18 Aug 2004 at 8.00am (UK)
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Zone 20 - A place in which an explosive atmosphere in the form of a cloud of combustible dust in air is present continuously, or for long periods or frequently.
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Zone 21 - A place in which an explosive atmosphere in the form of a cloud of combustible dust in air is likely to occur within normal operation occasionally.
Zone 22 - A place in which an explosive atmosphere in the form of a cloud of combustible dust in air is not likely to occur in normal operation but, if it does occur, will persist for a short period only.
For a machine builder such as AZO, this requirement caused great problems, because their customer plants were usually multifunctional, and in general, used for the production of differing products, some being conductive and some not.
Confronted with this, the engineers from AZO tried to find a solution for their machines that did not need constant modification due to the variance of clients' production environments.
The solution had to be a safe Zone 21 certified control unit, with industrial components inside.
Gary Ashburner, new Managing Director of Bartec UK operation explained, "After a lot of fine measurement and calculation in the company's development laboratories, our designers found it possible to find a way to calculate the maximum surface temperature of the dust tight enclosures, by using the power loss of each internal component specified within the control box".
After creating the final calculation programme, the Bartec team then added the machines' variable running conditions and subjected these to the maximum in safety margins, in accordance with EN 50281-1-1.
The end result was then presented to the notification body, IBExU in Freiberg, where the programme was also tested to confirm the possibility of the company utilising this method for building category 2D control stations for the use in combustible dust environments, with industrial components.
Gary concluded, "The results speak for themselves.
Bartec became the very first supplier in Europe to be awarded an EC Test Type certificate IBExU 00 ATEX 1079 for manufacturing and supplying industrial components inside Zone 21, dust tight enclosures!".
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